-
Notifications
You must be signed in to change notification settings - Fork 6
/
GLLItemMesh.m
278 lines (229 loc) · 10.2 KB
/
GLLItemMesh.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
//
// GLLItemMesh.m
// GLLara
//
// Created by Torsten Kammer on 05.09.12.
// Copyright (c) 2012 Torsten Kammer. All rights reserved.
//
#import "GLLItemMesh.h"
#import <AppKit/NSKeyValueBinding.h>
#import "GLLItem.h"
#import "GLLRenderParameter.h"
#import "NSArray+Map.h"
#import "GLLara-Swift.h"
@interface GLLItemMesh ()
/*!
* Creates the GLLShaderData object for this mesh, given the current values.
*/
- (GLLShaderData *)_createShaderData;
/*!
* Called on loading or creating. Sets up all necessery KVO observing to make
* sure we update the shader when we need to.
*/
- (void)_setupObservingForShaderChanges;
@end
@implementation GLLItemMesh
@dynamic cullFaceMode;
@dynamic isBlended;
@dynamic isCustomBlending;
@dynamic isVisible;
@dynamic item;
@dynamic renderParameters;
@dynamic shaderBase;
@dynamic textures;
@dynamic mesh;
@dynamic meshIndex;
@dynamic displayName;
@synthesize shader;
+ (NSSet *)keyPathsForValuesAffectingIsUsingBlending
{
return [NSSet setWithObjects:@"isBlended", @"isCustomBlending", nil];
}
- (void)prepareWithItem:(GLLItem *)item;
{
self.item = item;
self.cullFaceMode = self.mesh.cullFaceMode;
self.isVisible = self.mesh.initiallyVisible;
// Set display name
self.displayName = self.mesh.displayName;
GLLShaderData *modelShaderData = self.mesh.shader;
self.shaderBase = modelShaderData.base.name;
for (GLLShaderModule *module in modelShaderData.activeModules) {
[self setIncluded:YES forShaderModule:module.name];
}
// Set the initial rendering values
[self updateShader];
[self _setupObservingForShaderChanges];
}
- (void)awakeFromFetch
{
if (self.shaderBase == nil) {
// Old file, migrate to new format
NSString *shaderName = [self valueForKey:@"shaderName"];
if (shaderName) {
GLLModelParams *params = [GLLModelParams parametersForName:@"lara" error:NULL];
NSAssert(params != nil, @"Need to have base params");
XnaLaraShaderDescription *xnaLaraDescription = [params xnaLaraShaderDescriptionWithName:shaderName];
if (xnaLaraDescription) {
self.shaderBase = xnaLaraDescription.baseName;
for (NSString *feature in xnaLaraDescription.moduleNames) {
[self setIncluded:YES forShaderModule:feature];
}
// Assign the texture coordinates
for (GLLItemMeshTexture *texture in self.textures) {
texture.texCoordSet = [xnaLaraDescription texCoordSetFor: texture.identifier];
}
}
[self setValue:nil forKey:@"shaderName"];
}
}
[self updateShader];
if (!self.displayName)
self.displayName = self.mesh.displayName;
[self _setupObservingForShaderChanges];
}
- (NSSet<NSString *> *)shaderModules {
NSMutableSet *names = [[NSMutableSet alloc] init];
for (NSManagedObject *nameHolder in [self mutableSetValueForKey:@"shaderFeatures"]) {
[names addObject:[nameHolder valueForKey:@"name"]];
}
return names;
}
- (void)setIncluded:(BOOL)included forShaderModule:(NSString *)module {
if (included == [self isShaderModuleIncluded:module]) {
return;
}
NSMutableSet *shaderFeatures = [self mutableSetValueForKey:@"shaderFeatures"];
if (included) {
NSManagedObject *nameHolder = [NSEntityDescription insertNewObjectForEntityForName:@"GLLShaderFeature" inManagedObjectContext:self.managedObjectContext];
[nameHolder setValue:module forKey:@"name"];
[shaderFeatures addObject:nameHolder];
} else {
NSManagedObject *firstFound = nil;
for (NSManagedObject *nameHolder in shaderFeatures) {
if ([[nameHolder valueForKey:@"name"] isEqual:module]) {
firstFound = nameHolder;
}
}
if (firstFound) {
[shaderFeatures removeObject:firstFound];
}
}
}
- (BOOL)isShaderModuleIncluded:(NSString *)module {
for (NSManagedObject *nameHolder in [self mutableSetValueForKey:@"shaderFeatures"]) {
if ([[nameHolder valueForKey:@"name"] isEqual:module]) {
return YES;
}
}
return NO;
}
#pragma mark - Shader changes
- (void)_setupObservingForShaderChanges {
[self addObserver:self forKeyPath:@"shaderBase" options:0 context:NULL];
[self addObserver:self forKeyPath:@"shaderFeatures" options:0 context:NULL];
[self updateShader];
}
- (void)dealloc {
[self removeObserver:self forKeyPath:@"shaderBase"];
[self removeObserver:self forKeyPath:@"shaderFeatures"];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
if (([keyPath isEqual:@"shaderBase"] || [keyPath isEqual:@"shaderFeatures"]) && context == NULL) {
[self updateShader];
} else {
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
- (void)updateShader {
GLLShaderData *shaderDescription = [self _createShaderData];
if (!shaderDescription) {
self.shader = shaderDescription;
return;
}
GLLModelParams *params = self.mesh.model.parameters;
NSDictionary *values = self.mesh.renderParameterValues;
// Set up render parameters that do not exist yet
for (NSString *renderParameterName in shaderDescription.parameterUniforms)
{
if (![self renderParameterWithName:renderParameterName])
{
GLLRenderParameterDescription *description = [shaderDescription descriptionForParameter:renderParameterName];
GLLRenderParameter *parameter;
if (description.type == GLLRenderParameterTypeFloat) {
parameter = [NSEntityDescription insertNewObjectForEntityForName:@"GLLFloatRenderParameter" inManagedObjectContext:self.managedObjectContext];
[parameter setValue:[NSNumber numberWithDouble:[params defaultValueForRenderParameter:renderParameterName]] forKey:@"value"];
} else if (description.type == GLLRenderParameterTypeColor) {
parameter = [NSEntityDescription insertNewObjectForEntityForName:@"GLLColorRenderParameter" inManagedObjectContext:self.managedObjectContext];
[parameter setValue:[params defaultColorForRenderParameter:renderParameterName] forKey:@"value"];
} else
continue; // Skip this param
// Check if we have mesh-specific value for this
if (values[renderParameterName]) {
[parameter setValue:values[renderParameterName] forKey:@"value"];
}
// Special case: bumpSpecularAmount gets mapped to specularColor
if (description.type == GLLRenderParameterTypeColor && [renderParameterName isEqual:@"specularColor"]) {
double scalar = 1.0;
GLLRenderParameter* scalarParameter = [self renderParameterWithName:@"bumpSpecularAmount"];
if (scalarParameter) {
scalar = [[scalarParameter valueForKey:@"value"] doubleValue];
[[self mutableSetValueForKey:@"renderParameters"] removeObject:scalarParameter];
[self.managedObjectContext deleteObject:scalarParameter];
}
else if (values[@"bumpSpecularAmount"]) {
scalar = [values[@"bumpSpecularAmount"] doubleValue];
}
NSColor *colorParameterValue = [parameter valueForKey:@"value"];
CGFloat red, green, blue, alpha;
[[colorParameterValue colorUsingColorSpace:[NSColorSpace genericRGBColorSpace]] getRed:&red green:&green blue:&blue alpha:&alpha];
NSColor *result = [NSColor colorWithRed:red * scalar green:green * scalar blue:blue * scalar alpha:alpha];
[parameter setValue:result forKey:@"value"];
}
parameter.name = renderParameterName;
parameter.mesh = self;
}
}
// Set up textures that do not exist yet.
for (NSString *textureName in shaderDescription.textureUniforms)
{
if (![self textureWithIdentifier:textureName])
{
GLLItemMeshTexture *texture = [NSEntityDescription insertNewObjectForEntityForName:@"GLLItemMeshTexture" inManagedObjectContext:self.managedObjectContext];
texture.mesh = self;
texture.identifier = textureName;
GLLTextureAssignment *textureAssignment = self.mesh.textures[textureName];
if (!textureAssignment) {
// Don't have assignment, either because we changed to new shader or because original model was defective
// Use default.
texture.textureURL = [self.mesh.model.parameters defaultValueForTexture:texture.identifier];
NSNumber *texCoordAssignmentInShader = self.mesh.shader.texCoordAssignments[texture.identifier];
texture.texCoordSet = texCoordAssignmentInShader ? texCoordAssignmentInShader.integerValue : 0;
} else {
texture.textureURL = textureAssignment.url;
texture.texCoordSet = textureAssignment.texCoordSet;
}
}
}
[self willChangeValueForKey:@"shader"];
self.shader = shaderDescription;
[self didChangeValueForKey:@"shader"];
}
#pragma mark - Derived
- (NSUInteger)meshIndex
{
return [self.item.meshes indexOfObject:self];
}
#pragma mark - Private
- (GLLShaderData *)_createShaderData {
// Find the shader data object for this item based on active features and assigned tex coord sets
NSArray<NSString *>* activeModules = [[self mutableSetValueForKey:@"shaderFeatures"] map:^NSString *(NSManagedObject *object) {
return [object valueForKey:@"name"];
}];
NSMutableDictionary *texCoordSets = [[NSMutableDictionary alloc] init];
for (GLLItemMeshTexture *assignment in [self valueForKeyPath:@"textures"]) {
texCoordSets[assignment.identifier] = @(assignment.texCoordSet);
}
return [self.mesh.model.parameters explicitShaderWithBase:self.shaderBase modules:activeModules texCoordAssignments: texCoordSets alphaBlending: self.isUsingBlending];
}
@end